Tag

Geomagnetic Storms

All articles tagged with #geomagnetic storms

science2 hours ago•73 min saved

Crimson auroras over Japan hint at unexpectedly powerful solar storms

Scientists analyzing five red aurora events over Hokkaido, Japan (2024–2025) found the displays reached unusually high altitudes (about 310–500 miles) during storms not considered extreme, suggesting some solar storms carry more energy than traditional geomagnetic indices indicate. The study, published May 19 in the Journal of Space Weather and Space Climate, used ground images and satellite data and could improve space‑weather forecasting as solar activity remains near the cycle’s peak.

via Space|

#aurora #geomagnetic-storms #hokkaido

space3 days ago•5 min saved

Japan’s Crimson Aurora Signals Space Storms Stronger Than Official Metrics

New research finds red auroras over Japan extending to 500–800 km during moderately intense storms, higher than usually expected and suggesting standard indices may underestimate storm strength. The ASYM-H index often peaks 1.3–2.0 times SYM-H, implicating solar wind density (not just speed) as a key driver for mid-latitude auroras and atmospheric heating. Findings, aided by citizen scientists, have practical implications for satellite operations in low Earth orbit due to atmospheric drag and improved space weather forecasting.

via Indian Defence Review|

#auroras #geomagnetic-storms #satellites

space1 month ago•2 min saved

Solar Storm Puts Artemis 2 Launch Window at Risk

A Sun X1.4 flare from active region 4405 triggered a radio blackout and a coronal mass ejection heading toward Earth, prompting a G2 geomagnetic storm watch as Artemis 2’s launch window nears; NASA says there’s an 80% chance of favorable conditions on Wednesday, but CME timing could delay the mission if communications or navigation are affected.

via Gizmodo|

#artemis-2 #coronal-mass-ejections #geomagnetic-storms

space4 months ago•5 min saved

Sun's 94-Day 'Monster' Active Region Unleashed Earth-Impacting Space Weather

A 94-day observation of solar active region NOAA 13664 by Solar Orbiter and SDO captured its evolving magnetic field, revealing the Sun's strongest geomagnetic storms in over two decades and causing auroras visible as far south as Switzerland along with disruptions to satellites and railway signaling; the study, published in Astronomy & Astrophysics, marks a major advance in understanding space weather.

via The Daily Galaxy|

#geomagnetic-storms #noaa-13664 #solar-activity

science5 months ago•1 min saved

Northern Lights Might Shine Over 15 States This Weekend

The northern lights may be visible in several northern U.S. states on Wednesday due to geomagnetic storms caused by solar winds and a coronal mass ejection, with brighter and more widespread displays possible as a result.

via Forbes|

#aurora #coronal-mass-ejection #geomagnetic-storms

science6 months ago•0 min saved

Severe Space Weather Continues with Aurora Risks and Satellite Alerts

A CME has arrived and is passing over Earth, causing geomagnetic storms mostly in G1-G3 levels, with a G4 storm still possible tonight, leading to minor disruptions in HF radio and navigation signals.

via NOAA Space Weather Prediction Center (.gov)|

#cme #geomagnetic-storms #noaa

science6 months ago•2 min saved

Severe Solar Storms May Bring Stunning Auroras to North America

Space weather forecasters warn of severe solar storms caused by recent coronal mass ejections from the sun, which could produce vibrant northern lights visible across much of the northern U.S. and disrupt communications, GPS, and power grids. The sun is currently at the peak of its 11-year activity cycle, increasing aurora activity and space weather events, with experts advising caution and preparation for potential disruptions.

via NPR|

#auroras #geomagnetic-storms #noaa

science6 months ago•3 min saved

Severe Solar Storms May Bring Northern Lights to 21 US States

Space weather forecasters warn of severe solar storms caused by recent coronal mass ejections from the sun, which could produce spectacular auroras visible across much of the northern U.S. and even further south, while also potentially disrupting communications and power grids. The sun's heightened activity, part of its 11-year cycle, increases the likelihood of these displays and disruptions, with experts advising on how to view the auroras safely and effectively.

via PBS|

#auroras #geomagnetic-storms #northern-lights

science6 months ago•3 min saved

Solar Activity Intensifies with Major Sunspot Cluster and X-Class Flares

Astronomers are monitoring a large sunspot cluster, Region 4274, which has produced multiple powerful solar flares, including X-class events, potentially impacting Earth's communications and power systems as the sun approaches its active peak in its 11-year cycle.

via Gizmodo|

#geomagnetic-storms #science #solar-activity

science7 months ago•1 min saved

Northern Lights Visible in Multiple U.S. States Tonight

The northern lights may be visible in northern U.S. states due to minor geomagnetic storms caused by a coronal hole on the Sun, with the best viewing times between 10 p.m. and 2 a.m. and visibility extending to parts of Washington, Idaho, Montana, North Dakota, Minnesota, Wisconsin, Michigan, Maine, and Alaska.

via Forbes|

#aurora #coronal-hole #geomagnetic-storms

science7 months ago•2 min saved

Northern Lights May Shine Over 15 US States Tonight Amid Geomagnetic Storms

The NOAA forecasts a higher chance of visible northern lights in 15 U.S. states due to geomagnetic storms caused by solar coronal mass ejections, with the best viewing times between 10 p.m. and 2 a.m. and potential impacts on radio communications.

via Forbes|

#aurora-borealis #geomagnetic-storms #noaa-forecast

science7 months ago•2 min saved

Aurora Alert: U.S. and India May Witness Stunning Northern Lights This Weekend

The northern lights may be visible from several U.S. states along the U.S.-Canadian border tonight due to minor geomagnetic storms caused by solar winds from coronal holes on the Sun, with the best viewing conditions being northward and around midnight.

via Forbes|

#aurora-borealis #geomagnetic-storms #noaa

science-and-technology7 months ago•5 min saved

Scientists Warn of Solar Space Tornadoes Threatening Global Internet Stability

Scientists warn that solar 'space tornadoes' can trigger geomagnetic storms causing global internet outages, costing billions, and propose deploying a constellation of solar sail-powered probes for faster space weather detection to mitigate these risks.

via Rude Baguette|

#geomagnetic-storms #internet-outages #science-and-technology

science7 months ago•2 min saved

Northern Lights to Shine Over Multiple U.S. States This Week

Forecasters at NOAA predict a moderate chance of seeing the Northern Lights in northern U.S. states and Alaska on Tuesday evening due to minor geomagnetic storms caused by solar activity, with the best viewing times between 10 p.m. and 2 a.m. Travelers should head north and away from city lights for the best experience, and photographers are advised to use tripods and wide-angle lenses.

via Forbes|

#aurora-borealis #geomagnetic-storms #noaa

science7 months ago•3 min saved

Astronomers Warn of Rising Space Weather Risks

Astronomers warn that current space weather detection systems are insufficient to predict solar events like coronal mass ejections, which can disrupt Earth's technology. They propose a new constellation of satellites called SWIFT to improve monitoring and warning capabilities, especially during the Sun's active solar maximum period.

via Gizmodo|

#geomagnetic-storms #science #solar-activity